:root{
  --navy:#1f2a5c; --navy2:#2c3a7a; --maroon:#9b2335; --bg:#f3f5fa; --card:#fff; --ink:#1b1f2e;
  --muted:#6a7186; --line:#e3e6ef; --green:#1f7a4d; --red:#b3261e; --amber:#a86400; --chip:#e9ecf6;
  --radius:12px; --shadow:0 1px 2px rgba(20,30,60,.06),0 2px 8px rgba(20,30,60,.05);
}
@media (prefers-color-scheme:dark){:root{
  --bg:#11131b; --card:#1a1d28; --ink:#e8eaf2; --muted:#9aa1b6; --line:#2a2e3d; --chip:#252a3a;
  --green:#4cc38a; --red:#ff7b72; --amber:#e3a640; --shadow:none;
}}
*{box-sizing:border-box}
html,body{margin:0;background:var(--bg);color:var(--ink);font:15px/1.4 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-text-size-adjust:100%}
button,input,select{font:inherit;color:inherit}
a{color:inherit}
.boot{padding:40px;text-align:center;color:var(--muted)}
.num{font-variant-numeric:tabular-nums;white-space:nowrap}
.muted{color:var(--muted)} .small{font-size:12.5px} .right{text-align:right}
.dr{color:var(--ink)} .cr{color:var(--maroon)}
@media (prefers-color-scheme:dark){.cr{color:#ff9aa8}}
.pos{color:var(--green)} .neg{color:var(--red)} .warn{color:var(--amber)}

/* layout */
.top{position:sticky;top:0;z-index:20;background:var(--navy);color:#fff;padding:calc(env(safe-area-inset-top) + 10px) 14px 10px;display:flex;align-items:center;gap:10px}
.top h1{font-size:16px;margin:0;font-weight:600;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.top select{background:var(--navy2);border:0;color:#fff;border-radius:8px;padding:7px 8px;max-width:62vw}
.top .back{background:none;border:0;color:#fff;font-size:22px;padding:0 6px 0 0;cursor:pointer}
main{padding:12px 12px calc(84px + env(safe-area-inset-bottom));max-width:860px;margin:0 auto}
nav.tabs{position:fixed;bottom:0;left:0;right:0;z-index:20;background:var(--card);border-top:1px solid var(--line);display:flex;padding-bottom:env(safe-area-inset-bottom)}
nav.tabs a{flex:1;text-align:center;padding:8px 0 9px;text-decoration:none;color:var(--muted);font-size:11.5px}
nav.tabs a svg{display:block;margin:0 auto 2px;width:22px;height:22px}
nav.tabs a.on{color:var(--navy);font-weight:600}
@media (prefers-color-scheme:dark){nav.tabs a.on{color:#9fb0ff}}
.banner{background:#fff4d6;color:#6b4a00;padding:8px 12px;border-radius:10px;margin-bottom:10px;font-size:13px}
@media (prefers-color-scheme:dark){.banner{background:#3a2f12;color:#f2d38a}}
.banner.err{background:#fde8e6;color:#8a1c14}
@media (prefers-color-scheme:dark){.banner.err{background:#3d1a18;color:#ffb3ad}}

/* cards */
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:14px;margin-bottom:12px;border:1px solid var(--line)}
.card h2{font-size:14px;margin:0 0 10px;color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.03em}
.tiles{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:12px}
@media (min-width:640px){.tiles{grid-template-columns:repeat(4,1fr)}}
.tile{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:12px;box-shadow:var(--shadow);text-decoration:none;display:block;min-width:0}
.tile .lbl{font-size:12px;color:var(--muted)}
.tile .val{font-size:18px;font-weight:650;margin-top:3px;overflow:hidden;text-overflow:ellipsis}
.tile.hl{border-left:4px solid var(--maroon)}
.chips{display:flex;gap:6px;overflow-x:auto;padding-bottom:4px;margin-bottom:10px;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chip{border:0;background:var(--chip);border-radius:999px;padding:7px 12px;white-space:nowrap;cursor:pointer;font-size:13px}
.chip.on{background:var(--navy);color:#fff}
.seg{display:flex;background:var(--chip);border-radius:10px;padding:3px;margin-bottom:10px}
.seg button{flex:1;border:0;background:none;padding:8px;border-radius:8px;cursor:pointer;font-weight:550}
.seg button.on{background:var(--card);box-shadow:var(--shadow)}

/* lists */
.list{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.row{display:flex;align-items:center;gap:10px;padding:11px 14px;border-top:1px solid var(--line);text-decoration:none;cursor:pointer}
.row:first-child{border-top:0}
.row .main{flex:1;min-width:0}
.row .t{font-weight:550;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.row .s{font-size:12.5px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.row .amt{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.empty{padding:28px;text-align:center;color:var(--muted)}
.search{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:var(--card);margin-bottom:10px}
.badge{display:inline-block;font-size:11px;padding:2px 7px;border-radius:999px;background:var(--chip);color:var(--muted)}
.badge.red{background:#fde8e6;color:#8a1c14}
@media (prefers-color-scheme:dark){.badge.red{background:#3d1a18;color:#ffb3ad}}

/* tables */
.tbl{width:100%;border-collapse:collapse;font-size:13.5px}
.tbl th{text-align:left;font-weight:600;color:var(--muted);font-size:12px;padding:6px 6px;border-bottom:1px solid var(--line)}
.tbl td{padding:7px 6px;border-bottom:1px solid var(--line);vertical-align:top}
.tbl td.num,.tbl th.num{text-align:right}
.tbl tr.tot td{font-weight:650;border-bottom:0}
.scroll{overflow-x:auto}

/* forms */
.field{margin-bottom:12px}
.field label{display:block;font-size:13px;color:var(--muted);margin-bottom:4px}
.field input,.field select{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;background:var(--card)}
.btn{border:0;background:var(--navy);color:#fff;padding:11px 16px;border-radius:10px;font-weight:600;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;gap:6px;justify-content:center}
.btn.sec{background:var(--chip);color:var(--ink)}
.btn.red{background:var(--maroon)}
.btn.wa{background:#1f8f4e}
.btn.block{width:100%}
.btn[disabled]{opacity:.6}
.actions{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}
.daterow{display:grid;grid-template-columns:1fr 1fr auto;gap:8px;align-items:end;margin-bottom:10px}
.daterow .field{margin:0;min-width:0}
.daterow input{padding:9px 6px;min-width:0;width:100%}
.daterow .btn{padding:10px 12px}
.phone-only{display:block} .wide-only{display:none}
@media (min-width:700px){.phone-only{display:none} .wide-only{display:block}}

/* login */
.login{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px;background:linear-gradient(160deg,var(--navy),#3a1f3f)}
.login .box{background:var(--card);border-radius:16px;padding:26px 22px;width:100%;max-width:360px;box-shadow:0 10px 40px rgba(0,0,0,.25)}
.login h1{margin:0 0 4px;font-size:22px;color:var(--navy)}
@media (prefers-color-scheme:dark){.login h1{color:#c9d2ff}}
.login p{margin:0 0 18px;color:var(--muted);font-size:13.5px}
.err{color:var(--red);font-size:13.5px;margin:6px 0}

/* chart */
.bars{display:flex;align-items:flex-end;gap:6px;height:150px;padding-top:6px}
.bars .m{flex:1;display:flex;flex-direction:column;align-items:center;min-width:0;height:100%}
.bars .pair{flex:1;display:flex;align-items:flex-end;gap:2px;width:100%;justify-content:center}
.bars .b{width:42%;max-width:16px;border-radius:3px 3px 0 0;min-height:1px}
.bars .b.s{background:var(--navy)} .bars .b.p{background:var(--maroon)}
@media (prefers-color-scheme:dark){.bars .b.s{background:#8c9cf0}}
.bars .x{font-size:10.5px;color:var(--muted);margin-top:4px}
.legend{display:flex;gap:14px;font-size:12px;color:var(--muted);margin-top:8px}
.legend i{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:5px;vertical-align:-1px}

/* modal / toast */
.sheet-bg{position:fixed;inset:0;background:rgba(0,0,0,.4);z-index:50;display:flex;align-items:flex-end;justify-content:center}
.sheet{background:var(--card);width:100%;max-width:560px;border-radius:16px 16px 0 0;padding:18px 16px calc(18px + env(safe-area-inset-bottom));max-height:88vh;overflow:auto}
.sheet h3{margin:0 0 12px}
.toast{position:fixed;left:50%;bottom:90px;transform:translateX(-50%);background:#222;color:#fff;padding:10px 16px;border-radius:10px;z-index:60;font-size:14px;max-width:90vw}
.keybox{font-family:ui-monospace,Consolas,monospace;background:var(--chip);padding:10px;border-radius:8px;word-break:break-all;font-size:13px}
.check{display:flex;align-items:center;gap:8px;padding:6px 0}
.check input{width:18px;height:18px}

/* print (ledger PDF) */
.print-only{display:none}
@media print{
  .top,nav.tabs,.no-print,.banner{display:none!important}
  .print-only{display:block}
  .wide-only{display:block!important} .phone-only{display:none!important}
  body{background:#fff;color:#000}
  main{padding:0;max-width:none}
  .card{box-shadow:none;border:0;padding:0}
  .tbl{font-size:11px}
  .cr{color:#000}
  .scroll{overflow:visible}
}